Climatological Report (Monthly)
Issued by NWS

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798
CXUS55 KBYZ 011037
CLMLVM


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
432 AM MDT WED MAY 1 2019

...................................

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            77   04/19
LOWEST             10   04/29
AVG. MAXIMUM     54.1              55.0    -0.9
AVG. MINIMUM     32.9              29.1     3.8
MEAN             43.5              42.1     1.4
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32     13
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           3.44              1.77    1.67
DAYS >= .01        14
DAYS >= .10         7
DAYS >= .50         3
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.96   04/20 TO 04/20

DEGREE_DAYS
HEATING TOTAL     636               689     -53
 SINCE 7/1       7543              6948     595
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.1
HIGHEST WIND SPEED/DIRECTION    44/210    DATE  04/07
HIGHEST GUST SPEED/DIRECTION    59/230    DATE  04/07

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW               10     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...APRIL 2019 MONTH IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR APRIL 2019. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY RANKINGS
FOR PRECIPITATION AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN JULY 1948 AT OR NEAR THE LIVINGSTON AIRPORT.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

... MONTHLY PRECIPITATION...

 MONTH   2019 VALUES  NORMALS    DEPARTURE  RANKING

APRIL        3.44     1.77       +1.67      RECORD WETTEST OUT OF 71 YEARS
                                            (OLD RECORD WETTEST WAS 3.22 IN 1984)

... APRIL 2019 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.80 ON APRIL  8 (OLD RECORD 0.57 IN 1988)
0.54 ON APRIL  9 (OLD RECORD 0.38 IN 1965)
0.96 ON APRIL 20 (OLD RECORD 0.40 IN 1999)
0.31 ON APRIL 21 (OLD RECORD 0.30 IN 1971)

NOTE: SINCE THE LATE 1990S...LIVINGSTON BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.

... AVERAGE TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        43.5      42.1      +1.4      28TH WARMEST OUT OF 71 YEARS
                                           (RECORD WARMEST WAS 51.7 IN 1987)
                                           (WARMEST SINCE 43.8 IN 2017)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        54.1      55.0      -0.9      34TH COLDEST OUT OF 71 YEARS
                                           (RECORD COLDEST WAS 41.9 IN 1975)
                                           (COLDEST SINCE 53.2 IN 2018)

... APRIL 2019 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... APRIL 2019 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... AVERAGE LOW TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        32.9      29.1      +3.8      TIED FOR THE 14TH WARMEST OUT OF 71 YEARS
                                           (RECORD WARMEST WAS 34.9 TIED IN 1981)
                                           (WARMEST SINCE 34.5 IN 2016)

... APRIL 2019 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

41 ON APRIL  8 (TIED RECORD IN 1984)
53 ON APRIL 19 (OLD RECORD 50 IN 1999)

... APRIL 2019 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

10 ON APRIL 29 (OLD RECORD 12 IN 2005)

$$




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